Quantitative Reasoning Geometry Online Test 1

Aptitude

2. In a triangle ABC, ∠A= x°, ∠B= y° and ∠C =(y+20)°. If 4x-y=10, then the triangle is?

Obtuse-angled

Equilateral

Right-angled

none of these

Question 2 of 12

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3. The sum of the interior angles of a polygon is 1620°. The number of sides of the polygon are?

15

12

9

11

Question 3 of 12

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4. If 5π/6 is the measure of each interior angle of a regular convex polygon, then it must be a

octagon

hexagon

pentagon

dodecagon

Question 4 of 12

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5. The number of tangents that can be drawn to two non-intersecting circles is?

4

3

2

1

Question 5 of 12

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6. The perimeters of two similar triangle ABC and PQR are 36 cm and 24 cm respectively. If PQ=10 cm, then the length of AB is?

16 m

12 m

14 m

15 m

Question 6 of 12

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7. In a quadrilateral ABCD, ∠B=90° and AD²=AB²+BC²+CD², then ∠ACD is equal to

90°

50°

30°

60°

Question 7 of 12

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8. A man goes 10 m due east and then 24 m due north. Find the distance from the starting point.

24 m

26 m

28 m

30 m

Question 8 of 12

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9. The circumference of a triangle is always the point of intersection of the

perpendiculars dropped

perpendiculars bisectors

medians

altitude bisector

Question 9 of 12

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10. How many sides a regular polygon has with its interior angle eight times its exterior angle?

20

16

18

24

Question 10 of 12

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11. In the following figure, find ∠ADC.

27.5

55

60

30

Question 11 of 12

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12. The Qutab Minar casts a shadow 150 m long at the same time when the Vikas Minar casts a shadow of 120 m long on the ground. If the height of the Vikas Minar is 80 m, then the height of the Qutab Minar is?